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Old 06-05-2015, 10:46 PM
Gibsonat994 Gibsonat994 is offline
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Default Losing Coolant without overheating

So today i replaced my heater core after it went bad a little over a year ago. After replacing it, i decided to look under the hood a little bit and checked the coolant reservoir and it was bone dry. Not even a little moisture on the walls. I finished the project and filled it up with coolant. Drove a around for maybe 5-8 minutes, checked, empty. Filled it up and drove again this time keeping an eye on the coolant temperature gauge, it was all over the place, slow down and it would go up, accelerate and it would go down. But then later it did the opposite. I checked the oil and its not "milky" just looks like regular oil about half way through its life. The engine compartment has moisture on it but it looks more oily brown than coolant colored. And thats been there as long as i can remember. Also, there where no puddles when i filled up the coolant for the third time and let it sit and idle. Cant think of anything else to add. Anyone know what this could be?

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Sorry forgot to add that if there is another thread about this same problem i apologize, don't jump down my throat for it, if you know where it is then please just post the link. I searched for a bit but as it is a pretty specific problem i wasn't having any luck. Thanks!
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Old 06-05-2015, 10:48 PM
stateranger stateranger is offline
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Default Re: Losing Coolant without overheating

Recheck all of the hoses and clean up the excess moisture.
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Old 06-06-2015, 09:51 AM
sheltonfilms sheltonfilms is offline
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Default Re: Losing Coolant without overheating

How much coolant have you put in it total?

Could be just the system filling all the voids, probably not losing any at all.
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Old 06-06-2015, 10:58 AM
Gibsonat994 Gibsonat994 is offline
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Default

So far maybe a gallon.
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Old 06-06-2015, 11:07 AM
mms1361 mms1361 is offline
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Default Re: Losing Coolant without overheating

Id go on sheltons theory if youve only put in a gallon. Since your truck is older it might have bleed screws for the cooling system. Did you bleed all the air out?

1997 2.3 coolant capacity is showing 7.5 qts=1.875 gal
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Old 06-06-2015, 11:24 AM
Gibsonat994 Gibsonat994 is offline
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I did not bleed the air. Do you know where those screws are? I can just look it up if not.
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Old 06-06-2015, 01:23 PM
Greasemonkey51 Greasemonkey51 is offline
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I have a 97 2.3 no bleeders just have to have nose facing up and run it with the cap off till it settles. Took me about 10 mins or so when I changed my thermostat awhile back. And make sure your heater is on hot and fan full blast also helps getting the air out.
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Last edited by Greasemonkey51; 06-06-2015 at 01:25 PM.
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Old 06-07-2015, 11:12 PM
Gibsonat994 Gibsonat994 is offline
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Default Re: Losing Coolant without overheating

all done, it settled and is running right with no fluctuation and its retaining coolant. Thanks everyone!
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